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Summary of Significant Accounting Policies - Summary of Significant Accounts Receivable (Detail) (Accounts Receivable [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Gilead [Member]
Concentration Risk [Line Items]
Significant Accounts Receivable	53.40%
Pfizer [Member]
Concentration Risk [Line Items]
Significant Accounts Receivable	12.30%	45.40%
Boehringer [Member]
Concentration Risk [Line Items]
Significant Accounts Receivable	12.20%	18.00%
Eli Lilly [Member]
Concentration Risk [Line Items]
Significant Accounts Receivable	7.00%	28.20%
Servier [Member]
Concentration Risk [Line Items]
Significant Accounts Receivable	6.40%
Government Agencies [Member]
Concentration Risk [Line Items]
Significant Accounts Receivable	4.60%	8.40%

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13537-108611



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13531-108611



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592

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